Luggage lock



FIG. 1 is a bottom view of a luggage lock showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a luggage lock, as shown and described. 